#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
int main()
{
	double a, b, c;
	double x1, x2;
	cin >> a >> b >> c;
	double x = b * b - 4 * a * c;
	if (x > 0)
	{
		x1 = (-b + sqrt(x)) / (2 * a);
		x2 = (-b - sqrt(x)) / (2 * a);
		cout << "x1=" <<fixed<<setprecision(5)<< min(x1, x2) 
			<< ";" 
			<< fixed << setprecision(5) << "x2=" << max(x1, x2);
	}
	else if (x == 0)
	{
		x1 = x2 = -b / (2 * a);
		cout << fixed << setprecision(5) << "x1=x2=" << x1;
	}
	else
	{
		cout << "No answer!";
	}
	return 0;
}